rolling-pin

基本解释

Drinkers had to be evacuated from a Welsh pub when somebody realized that the rolling-pin that the landlord's wife has long used was a World War II shell.
威尔士的一个酒吧里的客人们被迫疏散，因为有人发现老板的妻子长期使用的擀面杖，其实是二战时期留下的炮弹。
I received a rolling-pin, start NiuDao bench, mother so easily calm face, in my hand not obedient, left once, right once, my JiaoZiPi seem an eight claw crabs.
我接过擀面杖，开始牛刀小试，妈妈那么轻松搞定的面皮，在我的手中却一点也不听话，左一下，右一下，我的饺子皮倒象一个八爪螃蟹。
Mom took a rolling-pin roll out a skin, the XianZi removed until the skin on both sides, will face a close, will coincide with fingers part in together, a dumpling is packed.
妈妈拿着擀面杖擀出了一个皮，把馅子舀到皮上，将面皮两边一合，将重合的部分用手指捏在一起，一个饺子就包好了。

When it's time to roll out the dough, Kimball suggests using a one-piece, tapered rolling pin, without ball-bearings.
NPR: A Thanksgiving Meal From The Test Kitchen

A rolling pin is a cylinder that you roll backward and forward over uncooked pastry in order to make the pastry flat.